BE784015A - DOUBLE HYDRAULIC SEAL FOR MINING OPERATION - Google Patents

DOUBLE HYDRAULIC SEAL FOR MINING OPERATION

Info

Publication number
BE784015A
BE784015A BE784015A BE784015A BE784015A BE 784015 A BE784015 A BE 784015A BE 784015 A BE784015 A BE 784015A BE 784015 A BE784015 A BE 784015A BE 784015 A BE784015 A BE 784015A
Authority
BE
Belgium
Prior art keywords
hydraulic seal
mining operation
double hydraulic
double
mining
Prior art date
Application number
BE784015A
Other languages
French (fr)
Original Assignee
Kloeckner Werke Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kloeckner Werke Ag filed Critical Kloeckner Werke Ag
Publication of BE784015A publication Critical patent/BE784015A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Press Drives And Press Lines (AREA)
  • Forging (AREA)
BE784015A 1971-05-27 1972-05-26 DOUBLE HYDRAULIC SEAL FOR MINING OPERATION BE784015A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712126314 DE2126314B2 (en) 1971-05-27 1971-05-27 HYDRAULIC DOUBLE SUPPORTING STAMP FOR MINING

Publications (1)

Publication Number Publication Date
BE784015A true BE784015A (en) 1972-09-18

Family

ID=5809058

Family Applications (1)

Application Number Title Priority Date Filing Date
BE784015A BE784015A (en) 1971-05-27 1972-05-26 DOUBLE HYDRAULIC SEAL FOR MINING OPERATION

Country Status (3)

Country Link
BE (1) BE784015A (en)
DE (1) DE2126314B2 (en)
FR (1) FR2139196B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111173545A (en) * 2020-03-07 2020-05-19 陕西陕煤韩城矿业有限公司 Resetting device for two-piece single hydraulic prop and mounting method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101994514B (en) * 2010-11-10 2014-10-15 李其明 Bidirectional hydraulic landing leg rod

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111173545A (en) * 2020-03-07 2020-05-19 陕西陕煤韩城矿业有限公司 Resetting device for two-piece single hydraulic prop and mounting method thereof

Also Published As

Publication number Publication date
DE2126314A1 (en) 1972-12-14
DE2126314B2 (en) 1976-12-23
FR2139196A1 (en) 1973-01-05
FR2139196B1 (en) 1977-06-17

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